Allied & ICAR Exam Bank • ALLIED_0136 NAT • 2 Marks

Section 2: Farm Machinery

Farm Machinery

Subtopic: Soil tillage

Question Statement:

A 3-bottom moldboard plow has each bottom of width $35\text{ cm}$ operating at plowing depth $18\text{ cm}$. The specific draft of the soil is $0.5\text{ kg/cm}^2$. Taking $g = 9.81\text{ m/s}^2$, the total draft in kN is (rounded off to two decimal places):

Answer Key:

9.27

Step-by-Step Solution & Explanation

$W = 3 \times 35 = 105\text{ cm}$. $A = 105 \times 18 = 1890\text{ cm}^2$. Draft $= 1890 \times 0.5 = 945\text{ kgf} = (945 \times 9.81)/1000 = 9.27\text{ kN}$.
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